Step 1: This question comes from the KAP framework in community medicine, which describes Knowledge, Attitude and Practice, with belief sitting alongside.
Step 2: Knowledge is what a person knows, a purely cognitive item. Belief is what a person holds to be true. Attitude is the feeling or readiness to act, so it carries emotional valence but is still an internal state.
Step 3: Practice is the actual behaviour or action a person carries out. Behaviour is the step that turns feeling into doing, so it is the component most directly driven by motivation. A person may know and feel correctly yet still not act unless motivated; motivation is the bridge to practice.
Step 4: So the item that both has an emotional driver and is most strongly moved by motivation is practice, the observable action.
Step 5: The answer is option C, practice.